What term describes the tissue from which woolly aphids extract their nutrient-rich fluid?
Answer
Phloem
Woolly aphids are specialized feeders that target the phloem tissue within the plant. The phloem is the specific vascular tissue within plants that is physiologically dedicated to transporting the sugars—the products of photosynthesis—from the leaves and storage areas to all other parts of the plant that require energy. By using their piercing-sucking mouthparts to penetrate the plant tissue and access this channel, the aphids efficiently drain this sugary, nutrient-rich fluid, which constitutes their entire diet.
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